Object Lifetime In C C++

February 28, 2009 Object Lifetime in C/C++ Madhubanti Dasgupta Interra Systems (India) Pvt. Ltd. Current Practices in Object Oriented Software Development Meghnad Saha Institute of Technology

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Object Lifetime Fundamentals Allocation - Deallocation

Object Lifetime Fundamentals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Object Lifetime Fundamentals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Object Lifetime Fundamentals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Managed Lifetime

Object Lifetime Fundamentals ,[object Object],[object Object],[object Object],[object Object]

Data Memory Areas System Agnostic View

Data Memory Areas Program Code Text Global / File Scope Objects; Static Class Scope Objects; Function Scope Objects Static Dynamic Objects managed by new / delete & malloc / free Free Store & Heap Automatic Objects Stack Constant literals including strings Const Data Data Area

Types of Objects Static – Automatic – Dynamic

Static Objects Compiler-Managed Objects in the Global Store

Static Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Static Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Static Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Static Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Execution beyond main() ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Execution beyond main() ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Automatic Objects Compiler-Managed Objects in Local Store

Automatic Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Automatic Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Automatic Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic Objects User-Managed Objects in the Free Store

Dynamic Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Object Lifetime In C C++

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